dentin

Also den·tine

[den-tn, -tin]

noun

Dentistry.

1. the hard, calcareous tissue, similar to but denser than bone, that forms the major portion of a tooth, surrounds the pulp cavity, and is situated beneath the enamel and cementum.

dentin

1. The main bony part of a tooth beneath the enamel, surrounding the pulp chamber and root canals.

dentin

1. The hard, bony material beneath the enamel of a tooth. The bulk of a tooth is made up of dentin.

Other Word Forms

• dentinal adjective

Word History and Origins

Origin of dentin¹

First recorded in 1830–40; dent- + -in ²

Example Sentences

He also argued that the dentin of Tyrannosaur teeth was more significant than the enamel.

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At the heart of the dentin is the tooth’s soft pulp, where nerve cells and cells called odontoblasts, which manufacture dentin, are intertwined.

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They counted fine lines in the dentin, the erstwhile living tissue of the teeth.

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Its teeth, like ours, are made up of an outer layer of enamel and an inner layer of hard, dense, bony tissue called dentin.

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The proteins came from collagen, a component of connective tissue in body parts including dentin, a part of teeth.

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